<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <h1>你好啊</h1>
    <img src="./monica.png" alt="">
    <form action="./" method="post">
        <input type="text" name="username" placeholder="姓名"> <br>
        <input type="text" name="age" placeholder="年龄">
        <input type="submit" value="post提交">
    </form>
</body>

</html>